Implement xdg-activation-v1

See https://github.com/swaywm/wlroots/pull/2718.

include/sway/server.h

@@ -87,6 +87,9 @@ struct sway_server {
 	struct wlr_text_input_manager_v3 *text_input;
 	struct wlr_foreign_toplevel_manager_v1 *foreign_toplevel_manager;
 
+	struct wlr_xdg_activation_v1 *xdg_activation_v1;
+	struct wl_listener xdg_activation_v1_request_activate;
+
 	// The timeout for transactions, after which a transaction is applied
 	// regardless of readiness.
 	size_t txn_timeout_ms;
@@ -141,5 +144,7 @@ void handle_xwayland_surface(struct wl_listener *listener, void *data);
 void handle_server_decoration(struct wl_listener *listener, void *data);
 void handle_xdg_decoration(struct wl_listener *listener, void *data);
 void handle_pointer_constraint(struct wl_listener *listener, void *data);
+void xdg_activation_v1_handle_request_activate(struct wl_listener *listener,
+	void *data);
 
 #endif

sway/meson.build

@@ -8,6 +8,7 @@ sway_sources = files(
 	'main.c',
 	'server.c',
 	'swaynag.c',
+	'xdg_activation_v1.c',
 	'xdg_decoration.c',
 
 	'desktop/desktop.c',

sway/server.c

@@ -25,6 +25,7 @@
 #include <wlr/types/wlr_tablet_v2.h>
 #include <wlr/types/wlr_viewporter.h>
 #include <wlr/types/wlr_xcursor_manager.h>
+#include <wlr/types/wlr_xdg_activation_v1.h>
 #include <wlr/types/wlr_xdg_decoration_v1.h>
 #include <wlr/types/wlr_xdg_foreign_registry.h>
 #include <wlr/types/wlr_xdg_foreign_v1.h>
@@ -159,6 +160,12 @@ bool server_init(struct sway_server *server) {
 	wlr_xdg_foreign_v1_create(server->wl_display, foreign_registry);
 	wlr_xdg_foreign_v2_create(server->wl_display, foreign_registry);
 
+	server->xdg_activation_v1 = wlr_xdg_activation_v1_create(server->wl_display);
+	server->xdg_activation_v1_request_activate.notify =
+		xdg_activation_v1_handle_request_activate;
+	wl_signal_add(&server->xdg_activation_v1->events.request_activate,
+		&server->xdg_activation_v1_request_activate);
+
 	// Avoid using "wayland-0" as display socket
 	char name_candidate[16];
 	for (int i = 1; i <= 32; ++i) {

sway/xdg_activation_v1.c

@@ -0,0 +1,20 @@
+#include <wlr/types/wlr_xdg_activation_v1.h>
+#include "sway/tree/view.h"
+
+void xdg_activation_v1_handle_request_activate(struct wl_listener *listener,
+		void *data) {
+	const struct wlr_xdg_activation_v1_request_activate_event *event = data;
+
+	if (!wlr_surface_is_xdg_surface(event->surface)) {
+		return;
+	}
+
+	struct wlr_xdg_surface *xdg_surface =
+		wlr_xdg_surface_from_wlr_surface(event->surface);
+	struct sway_view *view = xdg_surface->data;
+	if (!xdg_surface->mapped || view == NULL) {
+		return;
+	}
+
+	view_request_activate(view);
+}